Reenforced seamer



F. S. JONES. REENFORQED SEAMER. APPLICATION FILED OCT. 1'6. I920.

Patented Mar. 21, 1922.

ATTORNEY PATENT OFFICE.

FRANGIS'S. JONES, OF WEST NEW"BRIGHTON, NEW YORK.

REENFORCED SEAMER.

Specification of Letters Patent.

Patented Mar. 21, 1922.

Application filed October 16, 1920.. Serial No. 417,458.

To all whom it may concern:

Be it known that I, FRANCIS S. Jones, a citizen of the United States, residing at est New'Brighton, in the county of Richmond and State of New York, have invented new and. useful Improvements in Reenforced Sea-mers, of which the following is a specification;

This invention relates to an attachment for sewing machines for producing reenforced seams, and one of the objects is to produce a device of this nature which shall be particularly adapted to use in making silk garments and doing other fine work.

Another object is to produce a device which shall be simple in construction, inexpensiveto manufacture, and efficient for the purpose for which it is designed.

With these and incidental objects in View, the invention consists in certain novel construction hereinafter full described and particularly pointed out 1n the appended claims, and which is shown in the accompanying drawing consisting of one sheet, in which Figure 1 is a top plan view of my improved reenforced seamer.

Figure 2 is a side elevation of the same.

Figure 3 is a vertical sectional View on line 3-3 of Figure 1.

Figure 4 is a perspective view of the same.

Figure 5 is a View illustrating the work done by the device.

Like characters of reference refer to like parts in all views.

This invention contemplates the providing of an attachment for single needle sewing machines in which the foot shall be provided with a simple material folding element at its front portion from which the goods are directed rearwardly through an inclined slot formed in the bottom of the foot and extendingifrom the front to the rear of the foot.

eferring more particularly to the drawings, 10 represents the shank of a machine foot which may be made in any suitable manner to attach to the proper bar of a sewing machine, the form shown in the drawing comprising the bar receiving groove 11 and the screw receiving depression 12 being preferred. Extending forwardly from the shank is the presser foot proper which is provided with the usual short and long toes 13 and 14:, and is provided with a needle hole 15.

A piece of thin metal 16 of L-shape and rounded at the outer side of the angle is bent to a somewhat funnel shape and brazed or otherwise permanently secured to the foot with one end 17 secured to the surface of the long toe 1 1. From this point the member 16 is so seemed as to close the top portion of the opening between the toes passing down adjacent to the inner surface of the small toe 13 and forming a horizontal flange 18 which is flush with the lower surface of the toes 13 and 14: and terminates just in advance of the needle aperture 15. The member 16 forms a forward extension of a groove 19 formed in the bottom of the presser-foot and extending from front to rear thereof, the upper face of said groove being inclined downwardly from front to rear as shown in the drawings.

It will be readily understood that while the device could be made in a single integral piece, it is far cheaper to form it of two pieces as above described.

In operation, the goods is fed into the mouth of the funnel shape member 16 with the goods at the left of the operator. The edge will be folded over by the member 16 and after passing under the needle will be held down firmly during its further passage I and will be guided by the rear portion of the slot or groove 19. The work is then spread open with the seamed ridge up and this edge is again passed through the slot with the rough edge to the left and with the inner margin of the long toe 14; following along the first line of stitching which results in turning the seam over the roughedge and in evenly stitching along the margin of the seam.

It is of course understood that a different size of foot must be used if it is desired to make a different size of seam.

Particular emphasis is laid on the simplicity of the construction and upon the use of the inclined groove to hold and guide the material.

While I have described what I consider to be the most desirable embodiment of my invention, it is obvious that many of the details may be varied without in any way departing from the spirit of my invention, and I therefore do not limitmyself to the exact details of construction herein set forth nor to anything less than the whole of my invention limited only by the appended claims.

What I claim as new and desire to secure by Letters Patent is 7 1. The process of forming a reenforced seam which consists of first passing the edges of the material through a machine thereby.

folding the raw edges back upon the body e of the material and stitching the material portion to the inner surface of said short toe so as to provide a flange at its free edge extending toward said long toe and terminating'in the plane of the lower surface thereof.

3. A seamer comprising a foot'having a long toe and a short toe, and a funnelshaped folder having one edge secured to one of said toes and an intermediate portion se cured to the other'of said toes, and its other edge forming a free flange extending partway across between the toes in the plane of the lower face thereof, and forming an unobstructed passage for the fabric.

In testimony whereof I have affixed my signature.

FRANCIS s. JONES. 

